html,
body {
  margin: 0;
  /* background-color: antiquewhite; */
  height: 100%;
}

#content {
  margin: 20px;
}

nav ul {
  list-style-type: none;
  margin: 0;
  padding: 0;
  overflow: hidden;
  background-color: #333;
}

nav li {
  float: left;
}

nav li a {
  display: block;
  color: white;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
}

nav li a:hover {
  background-color: #111;
  text-decoration: none;
  color: rgb(255, 255, 255);
}

.material-switch > input[type="checkbox"] {
  display: none;
}

.material-switch > label {
  cursor: pointer;
  height: 0px;
  position: relative;
  width: 40px;
}

.material-switch > label::before {
  background: rgb(0, 0, 0);
  box-shadow: inset 0px 0px 10px rgba(0, 0, 0, 0.5);
  border-radius: 8px;
  content: "";
  height: 16px;
  margin-top: -8px;
  position: absolute;
  opacity: 0.3;
  transition: all 0.4s ease-in-out;
  width: 40px;
}
.material-switch > label::after {
  background: rgb(255, 255, 255);
  border-radius: 16px;
  box-shadow: 0px 0px 5px rgba(0, 0, 0, 0.3);
  content: "";
  height: 24px;
  left: -4px;
  margin-top: -8px;
  position: absolute;
  top: -4px;
  transition: all 0.3s ease-in-out;
  width: 24px;
}
.material-switch > input[type="checkbox"]:checked + label::before {
  background: inherit;
  opacity: 0.5;
}
.material-switch > input[type="checkbox"]:checked + label::after {
  background: inherit;
  left: 20px;
}

.refreshBtn {
  margin-bottom: 5px !important; 
}